import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.sql.DataSource;
import org.apache.commons.dbcp2.BasicDataSource;
import org.springframework.jdbc.datasource.DataSourceUtils;
public class Main {
public static void update(String sql) {
DataSource data = getDataSource();
Connection conn = null;
try {
conn = data.getConnection();
PreparedStatement ps = conn.prepareStatement(sql);
ps.executeUpdate();
} catch (Exception e) {
throw new RuntimeException(e.getMessage());
} finally {
try {
DataSourceUtils.doCloseConnection(conn, dataSource);
} catch (Exception e) {
}
}
}
protected static BasicDataSource dataSource = null;
public static DataSource getDataSource() {
synchronized (Thread.class) {
if (null == dataSource) {
dataSource = new BasicDataSource();
dataSource.setUrl("jdbc:sqlite:hp.db");
dataSource.setDriverClassName("org.sqlite.JDBC");
}
}
return dataSource;
}
public static void main(String[] args) throws Exception {
update("drop table if exists COMPANY");
update("CREATE TABLE COMPANY (ID INT,cname VARCHAR(40))");
for (int x = 0; x < 300; x++) {
update("insert into COMPANY(id , cname) values(" + x + " ,'xx" + x + "')");
}
PreparedStatement ps = getDataSource().getConnection().prepareStatement("select * from COMPANY");
ResultSet rs = ps.executeQuery();
while (rs.next()) {
System.out.println(rs.getString("id") + "--" + rs.getString("cname"));
}
}
}